Water-tight joint for tiling



(No Model) E. BOSWORTH.

WATER TIGHT JOINT FOR TILIN No. 284,170.

e, VA

ULT GOVE a tented RS, AREA s, m. Sept. 4, 1883.

WITNESSES c9 2" Attorney 15,

UNITED STATES PATENT OFFICE.

I EMORY noswon'rn, or CLEVELAND, OHIO.

WATER-TIGHT JOJI'NT FOR VTILING, VAULT-COVERS, AREAS, 84c.

SPECIFICATION forming part of Letters Patent No; 284,170, datedSeptember 4, i883. ApplicationfiledFebrnarygii,1383. (No model.)

To 60% whom it may concern.-

Be it known that I, EMORY BOSWORTH, a citizen of the United States ofAmerica, residing at Cleveland, in the county of Ouyahoga and State ofOhio, have invented certain new and useful Improvements in Water-TightJoints for Tiling,Vault-Covers, Areas, &c.;

and I do herebydeclare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make anduse the same.

This invention has relation to improvements in grating-tile, andespecially to such as are illuminated and used-for covering vaults,areas, floors, roofs, and skylights; and the object is to provide forgrating-tiles of the class mentioned ,a water-tight lock-joint foruniting the different sections or plates of the tiling. i

My invention therefore consists in forming the edge of one section ofgrating-tile with a transverse ridge, and a projecting hook impendingover the ridge and forming the ad joining section of grating-tile, witha transverse projecting hook adapted to fit over the ridge and under thehook of its adjacent piece.

In the accompanying drawingsfforming a part of this specification,Figure 1 is a plan View of two sections of grating-tile united by myimproved water-tight lock-joint. Fig. 2

- is a reverse view, showing the joint 'from be neath; and Fig. 3 is asectional View, showing the method of hooking the plates togetherand I iV sections of grating-tile.

the configuration of the joint.

The letter A represents adjoining plates or Plate B of these tiles isformed with the ridge a extending across itswidth, and also is formedwith the hooked flange b, which is so formed and placed as to form agroove between its inner line of 'base and the transverse ridge a, forthe purpose hereinafter mentioned. Plate 0 of the grating-tile is formedwith the hooked flange 0 extending the width of the plate and beyond theedge thereof, substantially as seen in the draw I ings. This hook, itwill be seen, conforms to the shape of the space between the ridge ofthe hook on the adjoining plate, and extends under the former into thegroove between them. The hooked flange b, instead of being continuous,may be divided into sections.

It will be seen that when the parts are united the hook of one'platelies in the other and forms an overlap at the meeting edge of the twosections. Putty, cement, or similar substance may befilled in the lip orgroove on the lower plate before uniting the plates, and after theplates are joined any crack or space 60 joint without departing from thespirit of the I invention.

. 7 0 What I claim as my invention, and desire to secure by LettersPatent, is-

1. A grating-tile or illuminating vault-cover with a water-tightlock-joint constructedsubstantially as described.

2. A grating-tile or illuminating vault-cover section formed with atransverse ridge across the edge, and aprojecting hooked flange underthe ridge, in combination with another xadjacentsection formed with aprojecting hook-flange adapted to fit under the ridge and over thehooked flange of the adjacent tiling, substantially as described.

In testimony whereof I affixmy signature in presence of two witnesses.

Witnesses:

GEo. H. Fos'rnn, CHAS. STUMM.

